path: root/Makefile
diff options
authorSam Ravnborg <>2006-08-07 21:01:36 +0200
committerSam Ravnborg <>2006-08-07 21:01:36 +0200
commit9ee4e3365dd0dab4c1e02fe44dc08a223b826c72 (patch)
treef133dfb7e53d0d3ea6f7734c4087dc02f737c5a3 /Makefile
parent58a2f7d85aaf4c41157f15c43a913b5c3c6b3adb (diff)
kbuild: external modules shall not check config consistency
external modules needs include/linux/autoconf.h and include/config/auto.conf but skip the integrity test of these. Even with a newer Kconfig file we shall just proceed since external modules simply uses the kernel source and shall not attempt to modify it. Error out if a config fiel is missing since they are mandatory. Signed-off-by: Sam Ravnborg <>
Diffstat (limited to 'Makefile')
1 files changed, 18 insertions, 6 deletions
diff --git a/Makefile b/Makefile
index 110db856e96..e71fefd220a 100644
--- a/Makefile
+++ b/Makefile
@@ -436,12 +436,13 @@ core-y := usr/
ifeq ($(dot-config),1)
-# In this section, we need .config
+# Read in config
+-include include/config/auto.conf
+ifeq ($(KBUILD_EXTMOD),)
# Read in dependencies to all Kconfig* files, make sure to run
# oldconfig if changes are detected.
-include include/config/auto.conf.cmd
--include include/config/auto.conf
# To avoid any implicit rule to kick in, define an empty command
$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
@@ -451,16 +452,27 @@ $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
# if auto.conf.cmd is missing then we are probably in a cleaned tree so
# we execute the config step to be sure to catch updated Kconfig files
include/config/auto.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
-ifeq ($(KBUILD_EXTMOD),)
$(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
- $(error kernel configuration not valid - run 'make prepare' in $(srctree) to update it)
+# external modules needs include/linux/autoconf.h and include/config/auto.conf
+# but do not care if they are up-to-date. Use auto.conf to trigger the test
+PHONY += include/config/auto.conf
+ $(Q)test -e include/linux/autoconf.h -a -e $@ || ( \
+ echo; \
+ echo " ERROR: Kernel configuration is invalid."; \
+ echo " include/linux/autoconf.h or $@ are missing."; \
+ echo " Run 'make oldconfig && make prepare' on kernel src to fix it."; \
+ echo; \
+ /bin/false)
# Dummy target needed, because used as prerequisite
include/config/auto.conf: ;
+endif # $(dot-config)
# The all: target is the default when no target is given on the
# command line.